@article{TM_1989_191_a4,
     author = {V. N. Popov},
     title = {Quantum crystallization of a~nonideal {Bose} gas},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {55--61},
     year = {1989},
     volume = {191},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1989_191_a4/}
}